Methanol filter for formaldehyde production

Abstract

The utility model relates to the technical field of methanol filtration, in particular to a methanol filter for formaldehyde production. Comprising a methanol filter body, a connecting pipe, a sealing ring, a butt-joint pipe, a screw rod, a sleeve and a mechanism, wherein the connecting pipe, the sealing ring and the butt-joint pipe are arranged on the methanol filter body; the screw rod fixedly sleeves the peripheral wall of the connecting pipe; the sleeve is placed at the bottom of the sealing ring; the sealing mechanism comprises a connecting ring fixedly connected to the top face of the sleeve, rubber rings fixedly connected to the outer circumferential wall and the inner circumferential wall of the connecting ring, and clamping plates fixedly connected to the left side face and the right side face of the sleeve. According to the methanol filter for formaldehyde production, through attachment between a rubber ring and a connecting groove, secondary sealing is carried out on the connecting position, gas leakage is avoided as much as possible, the sealing performance is improved, through attachment between a fixing plate and a clamping plate, a sealing ring and a sleeve are limited, the stability of the sealing ring and the sleeve is improved, and under the action of a spring, the sealing ring and the sleeve are not prone to falling off. And the sleeve is convenient for workers to disassemble and assemble, and is more convenient and practical.

Description

Technical Field

[0001] The present application relates to the technical field of methanol filtration, and in particular to a methanol filter for formaldehyde production. Background Art

[0002] Formaldehyde is an organic chemical substance with the chemical formula HCHO or CH2O and a molecular weight of 30.03. It is also called formaldehyde and is a colorless, irritating gas that is irritating to the human eyes and nose. The relative density of the gas is 1.067, the density of the liquid is 0.815g / 3cm, the melting point is -92°C, the boiling point is -19.5°C, and it is easily soluble in water and ethanol. The concentration of the aqueous solution can reach up to 55%, generally 35%-40%, usually 37%, which is called formaldehyde water, commonly known as formalin.

[0003] Chinese patent CN217367647U discloses a ternary filter for producing formaldehyde from methanol. The patent discloses a technical solution for convenient disassembly and assembly and improved production efficiency, which solves the problem that the filter element of the existing formaldehyde filter is installed inside the filter, which is inconvenient to quickly dismantle and replace, reducing maintenance efficiency, and when disassembling the filter element, the formaldehyde production equipment needs to be shut down to replace the filter element, thereby reducing the formaldehyde production efficiency.

[0004] In the process of implementing the present application, the inventors found that there are at least the following problems in the technology: when the device is in use, the connection is sealed by the fit between the threaded sleeve and the sealing ring, but when gas leaks, the sealing ring is easily blown, causing a gap in the connection, reducing the sealing performance, and the threaded sleeve is exposed to the outside, which is easy to contact with the outside, reducing the stability of the threaded sleeve. Therefore, a methanol filter for formaldehyde production is proposed to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a methanol filter for formaldehyde production, which has the advantages of high sealing and stability. It solves the problem that when the device is in use, the connection is sealed by the fit between the threaded sleeve and the sealing ring, but when gas leaks, the sealing ring is easily blown, causing a gap in the connection, reducing the sealing, and the threaded sleeve is exposed to the outside, which is easy to contact with the outside, reducing the stability of the threaded sleeve.

[0006] In order to achieve the above-mentioned purpose of high sealing and stability, the present application provides the following technical solution: a methanol filter for formaldehyde production, comprising a methanol filter body and a connecting pipe, a sealing ring, a butt pipe, a screw fixedly sleeved on the outer peripheral wall of the connecting pipe, a sleeve placed at the bottom of the sealing ring, and a sealing mechanism for the connection between the sleeve and the sealing ring;

[0007] The sealing mechanism includes a connecting ring fixedly connected to the top surface of the sleeve, a rubber ring fixedly connected to the outer peripheral wall and the inner peripheral wall of the connecting ring, a clamping plate fixedly connected to the left and right sides of the sleeve, two mounting plates fixedly connected to the top surface of the sealing ring, a fixing assembly for fixing the sleeve, and a supporting assembly for supporting the fixing assembly.

[0008] The present application fixes the sleeve through the action of the fixing component to improve the stability of the sleeve, and supports the fixing component through the action of the supporting component to improve the stability of the fixing component.

[0009] Furthermore, a threaded hole is formed on the inner peripheral wall of the sleeve, and the screw rod extends into the inside of the threaded hole and is threadedly connected thereto.

[0010] The beneficial effect of adopting the above further solution is that the sleeve is driven to move through the threaded connection between the sleeve and the screw, which is convenient for the staff to operate.

[0011] Furthermore, a connecting groove for placing a connecting ring is provided on the bottom surface of the sealing ring, and the two rubber rings are both fitted in the connecting groove.

[0012] The beneficial effect of adopting the above further solution is that the connection is sealed by the fitting between the rubber ring and the connection groove, thereby improving the sealing performance.

[0013] Furthermore, the fixing assembly includes a limit plate placed on the top of the two card plates, a connecting rod fixedly connected to the bottom surfaces of the two limit plates, a pull plate fixedly connected to the front surfaces of the two limit plates, an articulated frame fixedly connected to the left and right sides of the two connecting rods, a fixing plate hinged on the four articulated frames, and a rubber block fixedly connected to the four fixing plates on one side close to the connecting rod.

[0014] The beneficial effect of adopting the above further solution is that the fixed plate is driven to flip over under the action of the articulated frame, which makes it convenient for the staff to operate.

[0015] Furthermore, the top surfaces of the two clamping plates are provided with clearance grooves for the fixing plates to pass through, and the rubber block is fixedly connected to the connecting rod.

[0016] The beneficial effect of adopting the above further solution is that the fixing plate is supported by the rubber block, thereby improving the stability of the fixing plate.

[0017] Furthermore, the two fixing plates located on the same side are inclined relative to each other, and the fixing plates and the clamping plates are fitted together.

[0018] The beneficial effect of adopting the above further solution is: the sleeve is fixed by the fitting between the fixing plate and the clamping plate, thereby improving the stability of the sleeve.

[0019] Furthermore, the support assembly includes a telescopic rod fixedly connected to the bottom surfaces of the two mounting plates, a support plate fixedly connected to the left sides of the two limiting plates, and a spring sleeved on the outer peripheral walls of the two telescopic rods, the spring and the mounting plate are fixedly connected, the spring and the telescopic rod are both fixedly connected to the limiting plates, and the support plate is a Z-shaped plate.

[0020] The beneficial effect of adopting the above further solution is that the connecting rod is supported by the spring to improve the stability of the connecting rod.

[0021] Furthermore, the two mounting plates are each provided with a supporting groove on one side opposite to the other for the supporting plate to slide, and the mounting plates are L-shaped plates.

[0022] The beneficial effect of adopting the above further solution is: through the sliding connection between the support groove and the support plate, the limit plate is supported, thereby improving the stability of the limit plate.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0024] The methanol filter for formaldehyde production performs secondary sealing on the connection through the fitting between the rubber ring and the connecting groove, thereby avoiding gas leakage as much as possible and improving the sealing performance. The sealing ring and the sleeve are restricted through the fitting between the fixed plate and the clamping plate, thereby improving the stability of the sealing ring and the sleeve. The spring allows the staff to disassemble and assemble the sleeve, thereby being more convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the utility model;

[0026] Figure 2 It is a front schematic diagram of the structure of the utility model;

[0027] Figure 3 It is a bottom view schematic diagram of the sealing ring in the structure of the utility model;

[0028] Figure 4 for Figure 1 A is a magnified schematic diagram of the structure.

[0029] Description of reference numerals:

[0030] 1. Methanol filter body; 2. Connecting pipe; 3. Screw; 4. Sleeve; 5. Sealing ring; 6. Butt tube; 7. Mounting plate; 8. Rubber ring; 9. Connecting ring; 10. Connecting groove; 11. Clamping plate; 12. Telescopic rod; 13. Spring; 14. Support groove; 15. Support plate; 16. Limiting plate; 17. Pull plate; 18. Fixed plate; 19. Articulated frame; 20. Connecting rod; 21. Rubber block; 22. Make way groove. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] See also Figure 1-3 A methanol filter for formaldehyde production in this embodiment includes a methanol filter body 1 and a connecting pipe 2, a sealing ring 5, a butt pipe 6, a screw 3 fixedly sleeved on the outer peripheral wall of the connecting pipe 2, a sleeve 4 placed at the bottom of the sealing ring 5, and a sealing mechanism for the connection between the sleeve 4 and the sealing ring 5.

[0033] The sealing mechanism includes a connecting ring 9 fixedly connected to the top surface of the sleeve 4, a rubber ring 8 fixedly connected to the outer peripheral wall and the inner peripheral wall of the connecting ring 9, a clamping plate 11 fixedly connected to the left and right sides of the sleeve 4, two mounting plates 7 fixedly connected to the top surface of the sealing ring 5, a fixing assembly for fixing the sleeve 4 and a supporting assembly for supporting the fixing assembly. A threaded hole is provided on the inner peripheral wall of the sleeve 4, and the screw 3 extends into the inside of the threaded hole and is threadedly connected thereto. A connecting groove 10 is provided on the bottom surface of the sealing ring 5 for placing the connecting ring 9, and the two rubber rings 8 are both fitted with the connecting groove 10.

[0034] Specifically, the sleeve 4 is rotated, and the sleeve 4 is driven to move upward through the threaded connection between the sleeve 4 and the screw 3, so that the sleeve 4 and the sealing ring 5 fit together, and the connecting ring 9 is inserted into the interior of the connecting groove 10, so that the rubber ring 8 and the connecting groove 10 fit together, and the connecting groove 10 is sealed.

[0035] See also Figure 1 , Figure 3 and Figure 4 In this embodiment, the fixing assembly includes a limit plate 16 placed on the top of the two card plates 11, a connecting rod 20 fixedly connected to the bottom surface of the two limit plates 16, a pull plate 17 fixedly connected to the front surface of the two limit plates 16, an articulated frame 19 fixedly connected to the left and right sides of the two connecting rods 20, a fixing plate 18 hinged on four articulated frames 19, and a rubber block 21 fixedly connected to the side of the four fixing plates 18 close to the connecting rod 20. The top surfaces of the two card plates 11 are provided with a clearance groove 22 for the fixing plate 18 to pass through. The rubber block 21 is fixedly connected to the connecting rod 20. The two fixing plates 18 on the same side are relatively inclined, and the fixing plate 18 and the card plate 11 are in contact.

[0036] Specifically, the fixed plate 18 is pushed, and the fixed plate 18 is turned over by the action of the hinge frame 19, so that the rubber block 21 is squeezed to shrink the rubber block 21, and the fixed plate 18 passes through the clearance groove 22 and is located at the bottom of the card plate 11. The fixed plate 18 is loosened, and the fixed plate 18 is pushed to reset by the action of the rubber block 21. The fixed plate 18 and the card plate 11 are fitted together to fix the sealing ring 5 and the sleeve 4, thereby improving the stability of the sealing ring 5 and the sleeve 4.

[0037] See also Figure 1 , Figure 3 and Figure 4 In this embodiment, the support assembly includes a telescopic rod 12 fixedly connected to the bottom surfaces of the two mounting plates 7, a support plate 15 fixedly connected to the left sides of the two limit plates 16, and a spring 13 sleeved on the outer peripheral walls of the two telescopic rods 12. The spring 13 is fixedly connected to the mounting plate 7, and the spring 13 and the telescopic rod 12 are both fixedly connected to the limit plates 16. The support plate 15 is a Z-shaped plate, and the opposite sides of the two mounting plates 7 are provided with support grooves 14 for the support plates 15 to slide, and the mounting plates 7 are L-shaped plates.

[0038] Specifically, the pull plate 17 is pulled so that the pull plate 17 drives the limit plate 16 to move, and then drives the connecting rod 20 to squeeze the telescopic rod 12 and the spring 13, so that the telescopic rod 12 and the spring 13 are contracted, and the limit plate 16 is supported by the sliding connection between the support plate 15 and the support groove 14 to improve the stability of the limit plate 16. After the rubber ring 8 and the connecting groove 10 are fitted, the pull plate 17 is dropped, and the fixed plate 18 is pushed to reset under the action of the spring 13.

[0039] The working principle of the above embodiment is:

[0040] The fixing plate 18 is pushed, and the fixing plate 18 is turned over by the action of the hinge frame 19, and the rubber block 21 is squeezed to shrink the rubber block 21, and then the pull plate 17 is pulled, so that the pull plate 17 drives the limit plate 16 to move, and then the connecting rod 20 is driven to squeeze the telescopic rod 12 and the spring 13, so that the telescopic rod 12 and the spring 13 shrink, and the limit plate 16 is supported by the sliding connection between the support plate 15 and the support groove 14 to improve the stability of the limit plate 16, and the sleeve 4 is rotated, and the threaded connection between the sleeve 4 and the screw 3 is used. Then, the sleeve 4 is driven to move upward, so that the sleeve 4 and the sealing ring 5 fit together, the connecting ring 9 is inserted into the inside of the connecting groove 10, so that the rubber ring 8 and the connecting groove 10 fit together, and the connecting groove 10 is sealed, the pulling plate 17 is loosened, and the fixing plate 18 is pushed to reset under the action of the spring 13. The fixing plate 18 passes through the giving groove 22 and is located at the bottom of the clamping plate 11. The fixing plate 18 is loosened, and the fixing plate 18 is pushed to reset under the action of the rubber block 21. The fixing plate 18 and the clamping plate 11 fit together, and the sealing ring 5 and the sleeve 4 are fixed, thereby improving the stability of the sealing ring 5 and the sleeve 4.

Claims

1. A methanol filter for formaldehyde production, characterized in that: It comprises a methanol filter body (1), a connecting pipe (2) arranged on the methanol filter body (1), a sealing ring (5), a butt pipe (6), a screw (3) fixedly sleeved on the outer peripheral wall of the connecting pipe (2), a sleeve (4) placed at the bottom of the sealing ring (5), and a sealing mechanism for sealing the connection between the sleeve (4) and the sealing ring (5); The sealing mechanism comprises a connecting ring (9) fixedly connected to the top surface of the sleeve (4), a rubber ring (8) fixedly connected to the outer peripheral wall and the inner peripheral wall of the connecting ring (9), a clamping plate (11) fixedly connected to the left side and the right side of the sleeve (4), two mounting plates (7) fixedly connected to the top surface of the sealing ring (5), a fixing assembly for fixing the sleeve (4), and a supporting assembly for supporting the fixing assembly.

2. A methanol filter for formaldehyde production according to claim 1, characterized in that: The inner peripheral wall of the sleeve (4) is provided with a threaded hole, and the screw rod (3) extends into the interior of the threaded hole and is threadedly connected thereto.

3. A methanol filter for formaldehyde production according to claim 2, characterized in that: The bottom surface of the sealing ring (5) is provided with a connecting groove (10) for placing the connecting ring (9), and the two rubber rings (8) are both in contact with the connecting groove (10).

4. A methanol filter for formaldehyde production according to claim 1, characterized in that: The fixing assembly comprises a limit plate (16) placed on the top of the two clamping plates (11), a connecting rod (20) fixedly connected to the bottom surfaces of the two limit plates (16), a pull plate (17) fixedly connected to the front surfaces of the two limit plates (16), an articulated frame (19) fixedly connected to the left and right sides of the two connecting rods (20), a fixing plate (18) hinged to the four articulated frames (19), and a rubber block (21) fixedly connected to the four fixing plates (18) on a side surface close to the connecting rod (20).

5. A methanol filter for formaldehyde production according to claim 4, characterized in that: The top surfaces of the two clamping plates (11) are each provided with a clearance groove (22) for the fixing plate (18) to pass through, and the rubber block (21) and the connecting rod (20) are fixedly connected.

6. A methanol filter for formaldehyde production according to claim 5, characterized in that: The two fixing plates (18) located on the same side are inclined relative to each other, and the fixing plates (18) and the clamping plate (11) are in close contact with each other.

7. A methanol filter for formaldehyde production according to claim 4, characterized in that: The support assembly comprises a telescopic rod (12) fixedly connected to the bottom surfaces of the two mounting plates (7), a support plate (15) fixedly connected to the left sides of the two limiting plates (16), and a spring (13) sleeved on the outer peripheral walls of the two telescopic rods (12), the spring (13) and the mounting plate (7) are fixedly connected, the spring (13) and the telescopic rod (12) are both fixedly connected to the limiting plates (16), and the support plate (15) is a Z-shaped plate.

8. A methanol filter for formaldehyde production according to claim 7, characterized in that: The two mounting plates (7) are each provided with a support groove (14) on which the support plate (15) slides, and the mounting plates (7) are L-shaped plates.

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